July 16, 1993
12:00 AM (EDT)

News Release Number: STScI-1993-19

July 16, 1993: A team of astronomers reports that recent NASA Hubble Space Telescope (HST)
observations of the nearest Seyfert galaxy, NGC 4395, further support the theory that
active galaxies are fueled by a massive black hole at the center. The researchers say the HST results rule out vigorous star formation as the alternative
explanation for the mysterious power source behind quasars and extremely bright
galactic nuclei.